Hi, I saw some latest items by going to "Latest Items" but I can't find it in the item shop. I refreshed more than ten times because every time I refresh it, new items appear. Are the latest items not in sold yet?

lol. i had the same problem..i was basically thinking, 'oh, i went up a level. great! how..?'
when you look at your avatar, you see how much mana and hp you have, there's also a bar for how much XP. when you fill up that bar, you level up. then it sets an even higher number that you have to reach to get to the next level. everytime you fight and win a battle, you get more xp.

To gain back mana (magic points, basically), you have to buy mana pots. Go to Shinji's Item Store, which is just the store, click Other, and you will see a ton of cyan color bottles. Those are mana bottles. The red ones are HP bottles, and the purplish ones are HP + mana, which is the better deal. But I don't think you even need HP (because there's that heal button on the front page), so you can just get the cyan color bottles. The red HP bottles are for when you're battling and you're low in HP, then you can use the HP bottles to restore HP.

Well, sorry for making this longer than it should be. Basically, it's the first sentence.

lol. i had the same problem..i was basically thinking, 'oh, i went up a level. great! how..?'
when you look at your avatar, you see how much mana and hp you have, there's also a bar for how much XP. when you fill up that bar, you level up. then it sets an even higher number that you have to reach to get to the next level. everytime you fight and win a battle, you get more xp.